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The Effect of Temperature on the Chemistry and Morphology of the Interphase in an SCS6/Ti-6AI-4V Metal Matrix composite.

Published online by Cambridge University Press:  21 February 2011

C. Jonesa ,
C. J. Kielya  and
S. S. Wang
C. Jonesa
Affiliation:
Now at Liverpool University, England
C. J. Kielya
Affiliation:
Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801 Now at Liverpool University, England
S. S. Wang
Affiliation:
National Centre for Composite Materials Research, University of Illinois, Urbana, Illinois 61801
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Abstract

The changes in chemistry and morphology within the interphase region of an SCS6/Ti-6A1-4V metal matrix composite upon exposure to varying heat treatments have been studied. It is thought that changes such as the formation of small TiC particles at one interface, and the narrowing of a protective pyrocarbon layer at another, induce fracture to occur at different places within the interphase upon heating. Evidence for a phase change on heat treatment of a TixSiy(C) layer to the more thermodynamically stable silicide phase,Ti5 Si3, is also presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 170: Symposium N – Interfaces in Composites , 1989 , 179
Copyright
Copyright © Materials Research Society 1990

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References

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